EP 0189333 A3 19861230 - MARINE SEISMIC TRANSDUCER
Title (en)
MARINE SEISMIC TRANSDUCER
Publication
Application
Priority
GB 8501954 A 19850125
Abstract (en)
[origin: EP0190861A2] The invention relates to a marine seismic vibrator which differs from known vibrators in being adapted to use seawater as a hydraulic liquid for generating the seismic vibrations. Preferably the seawater is used to reciprocate a piston and cylinder arrangement in a vibration generating mechanism, preferably via a hydraulic servo valve which may be controlled by an electrically operated pilot valve. Two embodiments of vibrator are described, one of modified conventional form and the other of completely novel construction. It is to be understood that the invention is applicable to any conventional marine seismic vibrator which can be modified to use seawater as its operating fluid.
IPC 1-7
IPC 8 full level
G01V 1/135 (2006.01)
CPC (source: EP)
G01V 1/135 (2013.01)
Citation (search report)
- [X] US 4396088 A 19830802 - BAYHI JOSEPH F
- [X] US 3721311 A 19730320 - MOTT SMITH L
- [A] US 3740708 A 19730619 - PHILLIPS W
Designated contracting state (EPC)
FR GB NL
DOCDB simple family (publication)
EP 0190861 A2 19860813; EP 0190861 A3 19861230; EP 0189333 A2 19860730; EP 0189333 A3 19861230; GB 8501954 D0 19850227; NO 860275 L 19860728; NO 860276 L 19860728
DOCDB simple family (application)
EP 86300536 A 19860127; EP 86300535 A 19860127; GB 8501954 A 19850125; NO 860275 A 19860127; NO 860276 A 19860127